Wax composition and method of preparing the same



I Patented May 28, 1946 WAX COMPOSITION AND METHOD t PREPARING THE SAME Michael Berliney, Jersey Bowden, East Orange, stine, Short Hills, N. J. signments, to Boyle-Midway Inc.,

City, Garfield Arthur and Jack Taylor Hohnassignors, by mesne as- New York,

N. Y., a corporation of Delaware No Drawlngz- Application November 4, 1942,

. Serial No. 464,512

Claims. (Cl. 106-219) The invention relates to waxes and wax blends I (4) and the methods of preparing the same and is de- Lbs. signed primarily to produce waxes using the min- Paraflln-l23 to 125 F.. 57 imum of natural waxes and wax-like materials in Paramn-160 to 165 F 25 their composition. 5 Rosin 18 With this object in view the invention consists Stearic acid single pressed, 8 in waxy compositions wherein paramn wax may, Peanut oil 6 by a special process, be intimately blended with Calcium stearate 5 rosins of the ester gum or polymerized type (5) 1 stearic acid, stearates and certain animal, vege- 10 Lbs table 01' mineral oils to form finished Products m 12 t 1250 F 57 suitable for coating compositions for waterproof- Paramn 160 to F 25 mg Purposes Rosin i 1a For the p p of Waterprmflng p p board Shear 1c acid single pres5ed 8 containers designed for ammunition, food or the 15 Soya bean on raw 6 like, and for coating paper, we have developed a Calcium steaime 5 waxy compositionwhich utilizes paraflins, a natural polymerized wood rosin, or a rosin oi the ester (6) gum type, stearic acid, a mineral oil, a vegetable Lbs. oil and a steal-ate. The following iormulas have Parafiin--l23 to 125 F 57 been found suitable and are presented as exem- Paraflln-ISO to 165 F 25 plary: Rosin 18 Y (1) Stearic acid single pressed 8 i Lbs. Fish nil 6 Paraflin-123 to 125 F 57 5 Calcium stearate 5 3:3? 160 71165 F T The process of preparing the finished wax from steam, acid single pressed 8 the above formulas is, for example, as follows: Mineral 01185? viscosity at 100 F 2 In 88S fired iron kettle the full amount of Castor on 4 so rosin is placed and approximately one third to two Calcium steam, 5 thirds, depending upon the nature of the material to be treated with the composition, of the castor (2) oil (Table 1) is added thereto, together with about L 1eitiethali' (altar steail'lif acidtacllid the ingirediengs a ea ed un oroug y me woo en pa Farm-123 F 57 die is used to stir the mixture until completely Pawn-16o F -r 25 mixed. The temperature used for mixing and R051 13 melting is within the range of from approximately Stearic acid single pressed-- 8 290 to 00 Mmeml on viscosity F 2 When the formula, shown in Table 2 is used in bean on 4 the above example the soya bean oil blown is sub- Calcium stemte 5 stituted for the castor oil and it should be noted that Tables 1 and 2 call for a mineral oil as well (3) as the vegetable oils.

Lbs. In a separate steam jacketed mixing kettle the Parailln-l23 to 125 F 57 remaining stearic acid is placed and the entire Paraflin-lfil) to 165 F 25 amount of both paraflins added thereto where- Rosin 18 after the temperature is raised to within the Stearic acid single pressed 8 range of approximately from 200 to 220 F. The Mineral oil viscosity at F 6 remainder of the castor oil (Table 1) is then Calcium stearate 5 50 added together with the mineral oil. This mixture is then agitated with a power agitator for about five minutes. At this point the molten rosin, stearic acid and castor oil mixture previously prepared is added slowly and with constant agitation When all of the rosin mixture has been added agitation is continued for from five to ten minutes and the temperature adjusted to approximately 250 F. The five lbs. of calcium stearate is then added slowly andwith constant agitation and maintenance of I the temperature at approximately 250 F,

For the formula shown in Table 2 in the above step soya bean oil blown is substituted for thecastor oil. l

Using the formulas in Tables 4,-1.5, and ,6

wherein only one oil, either animal, vegetable or mineral is used the following process applies. I

' The full amount of rosin'is placed ina' gas fired iron kettle and approximately one half of the oil is added thereto, together with about one, nan.

of the stearic acid andthe mixture heated with stirring until thoroughly melted. The temperature used is within the range of from approxi mately 290 to 300 F.

In a separate steam jacketed mixing kettle the remainder of the stearic acid is placed and the entire amount of both paraflins added thereto whereafter the temperature 'is raised to within the range of from 200 to 220 F. The remainder of the oil is then added and the mixturethen itated with a power agitator for 3 about 'five' minutes. Following this the molten rosin, stearic acid and oil mixture previously prepared is added slowly with constant agitation, such agitation being continued for from five to ten minutes after all of the rosin mixture has been added. The

temperature is adjusted to 250"; F. and the calcium stearate added with constant agitation and maintenance of the 250 F. temperature.

The complete mixture is drawn oil into molds and is a clear brown amber colored liquid which upon cooling becomes light straw color without surface or inner crystallization of the finished cake.

f The finished product has ,thei'ollowing char-v acteristics: Softening point 142-150 F. Flash point 40015 F. Fire point 4405 F. Acid value 15-18 Saponification number 25-47 Viscosity 91.4i5seconds at 210 F. 'Water absorption e 3% 11% Penetration 60-90% and shows no separation on reheating for seven dflyS at 100 F. V

f Wehave. found that "the combination of stearic properties naturally inherent in the ingredients are aided by the use of a stearate.

The resulting product is exceedingly adaptable for the protection of paper board containers by vegetable oil and mineral oil, mixing together containing paraflin "as the major ingredient in the two molten mixtures with constant agitation, adding to; the composite mixture calcium stearate and cooling the resultant mix, said final mix amount, said rosin comprising about one fourth [theamount of said paraffin, said stearic acid comprising about one half the amount of said rosin and said stearate and oils each being less in amount than said stearic acid.

2. A wax coating composition, comprising a mixture of an ester type rosin, stearic acid and paraffin wax. said wax constituting the major ingredient in amount, said rosin comprising about one fourth the amount of said wax and the stearic acid comprising about'lone'lialf th amount of said rosin.- v e l 3. A wax coating composition,. comprising a mixture or an ester type rosin, stearic acid, calcium stearate, a; vegetableoilya mineraioil and paraiiin wax, said wax -onstitutingthe major ingredient in amount, said rosin comprising about one fourth the amount of saidrwax, the stearic acid comprising about ioneihalf the amount of saidrosin and said stearate and oils eachbein less in amount than said stearic acid..

4. Awax coating composition; comprising a mixture of an ester type rosin-,stearic acid, calciumstear'ate; paraflinwax and-an oil for imparting both permeabiilty' andifiexibility. tothe prodnot, selected from the' group consisting or mineral, vegetable and fish oils,-said wax constituting the major-ingredient in amount, said rosin comprising about one fourthzthei amount of said wax, the stearic acid comprising about one half the amount of said rosin and said stearate and oil each being less in amount than said stearic 0 acid.

5. A wax .coating composition, comprising a mixture of an ester type rosin, stearic acid, paraffin wax, calcium stearate anda vegetable oilfor imparting both permeability: andifiexibility to the product, said wax constituting the. major inacid, resin and parafiin produces a waxy product oi the proper' structure and that the permeability of the product is determined by us of th mi eral, an animal or a vegetable oil, as is alsothe gredient in amount, said rosincomprising-about one fourth the amount 01' said wax, said stearic acid comprising about one half the amount 0! said rosin and said stearate and oil each being unless in amount than said stearic acid.

' 'mcnannssniw GARFIELD, ARTI-IURBOWDEN. JACK TAYLOR HOHNS'IINE- 

